Mortgage

Q: I had three questions regarding interest:

1. Is a mortgage (on interest) permissible in Islam to purchase a family home?

2. If my parents are pressuring me into purchasing a family home through mortgage rather than renting, am I under obligation to listen to them?

3. If I make a total of the amount of interest my father pays on a regular basis with the intention of persuading him to reduce his loans, is this permissible, and would this be considered “recording interest” which is forbidden in hadith?

Travelling without a mahram

Q: Can I travel without a mahram to a different country for my brother's wedding? My husband can't go and he won't let me go without a mahram. If he has already said it to me once and I still have to go, then will he be sinning for letting me go? Won't it be my decision if I want to go or not to go? Is he allowed to force me to do something?

Washing clothes in the washing machine

Q: Please can you advise if a bed sheet with stains (possibly not najis, possibly sweat or drooling saliva) has been washed in the washing machine with other stuff but the stain has not been removed fully then is the sheet as well as other stuff rendered impure even after 5 rinses and spins or is it paak. Also is raw fleshy skin due to a burn peeling off on the arm considered pure?

Early settlement discount

Q: Where I work, we offer the 2.5% settlement discount for all customers if they pay their account within 30 days. This is a practice followed by the business over 30 years and all major customers take this if the ones that pay by the 7th of the following month. we allow this although it is not within the period. is this 2.5% also not allowed. Also, with our holding company (foreign based), we get a 3% discount if we pay the invoices within 14 days from when goods are invoiced. if we pay after 14 days, we cannot take the discount and our credit terms intra group is 60 days. Please let us know whether the practices are allowed as I am in charge of the payments.